What is a primary use of CT scans?

What is a primary use of CT scans?

• A. Locate cancer
• B. Diagnose brain tumors
• C. Determine blood type
• D. Measure blood pressure

Answer: (A)

CT scans use X-ray beams to take quick, cross‑sectional pictures of the body, giving a clear view of internal structures. This makes them especially useful for spotting where a tumor is, how large it is, and whether it has invaded nearby tissues or spread to other areas. Because CT is fast and widely available, it’s a common first step in cancer assessment and in planning treatment, which is why locating cancer is the best answer. For brain tumors, MRI often provides more detail, and CT isn’t used to determine blood type or measure blood pressure—those facts come from different tests and tools.

CT scans use X-ray beams to take quick, cross‑sectional pictures of the body, giving a clear view of internal structures. This makes them especially useful for spotting where a tumor is, how large it is, and whether it has invaded nearby tissues or spread to other areas. Because CT is fast and widely available, it’s a common first step in cancer assessment and in planning treatment, which is why locating cancer is the best answer. For brain tumors, MRI often provides more detail, and CT isn’t used to determine blood type or measure blood pressure—those facts come from different tests and tools.